A Shibboleth authentication module, commonly referred to as shib_auth, is available for Drupal 6. It can be found at http://drupal.org/project/shib_auth
When used with Drupal 6, Drupal groups membership can be generated from rules that evaluate the data contained in the SAML assertion that is provided by the identify providerThe shib_auth module allows you to configure your Drupal site to use Touchstone to authenticate users, instead of the traditional approach of creating all your Drupal user accounts by hand. When the module is installed and configured properly, when someone visits your Drupal site with a valid Touchstone login credential, a Drupal account gets automatically created on-the-fly for the user, and instead of having to type in a manual username and password, Drupal trusts the already-established Touchstone session. This vastly simplifies the administrative task of user creation.
In order to use this authentication module, you will still need to install the Shibboleth SP package on your web server and you will still need to configure and customize the configuration. Once you have done that you will also need to configure the authentication module via the Drupal GUI.
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